Gelation in the non-stoichiometric step growth polymerization of two- and three-functional monomers

被引：0
|
作者：
Lechowicz J.B. [1 ]
机构：
[1] Rzeszow University of Technology, Faculty of Chemistry, 35-959 Rzeszów
来源：
Polimery/Polymers | 2010年 / 55卷 / 7-8期
关键词：
Gelation; Monte Carlo simulation; Polymer networks; Step growth polymerization; Three-functional monomer; Two-functional monomer;
D O I：
10.14314/polimery.2010.594
中图分类号：
学科分类号：
摘要：
A random step grow polymerization of two-functional (A2) and three-functional (B3) monomers was studied using a computer simulation method. The focus was on the effect of dividing the process into stages onto the weight-average polymerization degree (Pw) of the resulting polymeric product. It was found that by applying the procedure one can bring to gelation a system that does not form a network when polymerized in a single stage. Such an effect known previously as a result of changes in stoichiometry of a system, can also be observed when the ratio of monomers is the same throughout the whole process. Then, the gelation stems from the growth history of macromolecules.
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页码：594 / 596
页数：2
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